Horizontal grid stationery is usually 20 * 20, 15 * 20, also known as 300 grids, 400 grids and 500 grids. Smaller squares, more squares. Generally, each edition has 20 squares and 20 squares, which are used to do math exercises, leaving a space on the left to write the title number. It is used to practice calligraphy, some are printed with nine squares, and some are used to write big characters and fine characters respectively.
Basic information
Notepad originally refers to a booklet used to record all kinds of things. When human beings didn't invent words, they often used the method of knotting ropes to record numbers or events, express a certain meaning and transmit information. It can be seen from the net pattern in the painting remains of primitive society, the rope pattern on pottery and the net drop of pottery that knotting (counting) is one of the recording methods widely used by primitive ancestors.
Notepad, in daily life, refers to a booklet used to record all kinds of things. In windows operating system, Notepad is a small application, which uses a simple text editor to record and store text information. Starting from Windows 1.0 released by 1985, all versions of Microsoft Windows have this software built in.